New Evidence on the Complex Structural Pattern of Yanshan Orogenic Belt and its Implication
wang yang 1; 2 ji guang-yi 3 xia xi-fan 3 (1.key laboratory of isotope geochronology and geochemistry; guangzhou institute of geochemistry; chinese academy of sciences; guangzhou 510640; 2.school of earth science and mineral resources; china university of geosciences; beijing 100083; 3.geological institute of beijing municipality; beijing 100011)